Refactoring, fix tests

replacer.py

@@ -64,8 +64,10 @@ class Replacer(object):
     def __init__(self):
         """Initialize plugin"""
         self.replacement_map = {}
-        self._path = None
+        self._path = self._locate_replacement_file()
+        self._get_replacement_map()
 
+    def _locate_replacement_file(self):
         map_file = "replacement_map.json"
         data_dirs = (weechat.info_get("weechat_data_dir", ""),
                      weechat.info_get("weechat_config_dir", ""),
@@ -73,21 +75,18 @@ class Replacer(object):
 
         for path in data_dirs:
             if os.path.exists(os.path.join(path, map_file)):
-                self._path = os.path.join(path, map_file)
-                break
-
-        version = weechat.info_get("version_number", "") or 0
+                return os.path.join(path, map_file)
 
         # nothing found. so there is no replacement file. let's assume the
         # right file path.
         if not path:
+            version = weechat.info_get("version_number", "") or 0
             if version < 0x3020000:  # < 3.2.0
                 path = '%h/' + map_file
-                self.path = weechat.string_eval_path_home(path, {}, {}, {})
+                return weechat.string_eval_path_home(path, {}, {}, {})
             else:
-                self.path = os.path.join(weechat.info_get("weechat_data_dir",
-                                                          ""), map_file)
-        self._get_replacement_map()
+                return os.path.join(weechat.info_get("weechat_data_dir", ""),
+                                    map_file)
 
     def _get_replacement_map(self):
         """Read json file, and assign it to the replacement_map attr"""

test_replacer.py

@@ -4,6 +4,7 @@
 import sys
 import os
 import unittest
+from unittest import mock
 import tempfile
 
 
@@ -69,6 +70,12 @@ class Weechat(object):
     def string_eval_path_home(self, path, pointers, extra_vars, options):
         return path
 
+    def info_get(self, key, args):
+        _map = {'weechat_data_dir': None,
+                'weechat_config_dir': None,
+                'version_number': 0x3020000}
+        return _map.get(key)
+
 
 weechat = Weechat()
 sys.modules['weechat'] = weechat
@@ -78,11 +85,14 @@ import replacer
 
 
 class TestReplacer(unittest.TestCase):
-    def setUp(self):
+
+    @mock.patch('replacer.Replacer._locate_replacement_file')
+    def setUp(self, rfile):
         fd, fname = tempfile.mkstemp()
         os.close(fd)
+        rfile.return_value = fname
         self._path = fname
-        self.repl = replacer.Replacer(self._path)
+        self.repl = replacer.Replacer()
 
     def tearDown(self):
         self.repl = None
@@ -104,6 +114,7 @@ class TestReplacer(unittest.TestCase):
         self.assertTrue(self.repl.delete('foo'))
         self.assertDictEqual(self.repl.replacement_map, {})
 
+
 class TestDummyTests(unittest.TestCase):
     """
     This, somehow stupid test ensures, that process of reading default
@@ -112,15 +123,22 @@ class TestDummyTests(unittest.TestCase):
     def tearDown(self):
         replacer.Replacer.self_object = None
 
-    def test_init(self):
+    @mock.patch('replacer.Replacer._locate_replacement_file')
+    def test_init(self, rfile):
+        rfile.return_value = 'dummy_path'
         repl = replacer.Replacer()
         self.assertIsInstance(repl.replacement_map, dict)
 
-    def test_main(self):
+    @mock.patch('replacer.Replacer._locate_replacement_file')
+    def test_main(self, rfile):
+        rfile.return_value = 'dummy_path'
         replacer.Replacer.self_object = replacer.Replacer()
         replacer.main()
 
-    def test_injector(self):
+    @mock.patch('replacer.Replacer._locate_replacement_file')
+    def test_injector(self, rfile):
+
+        rfile.return_value = 'dummy_path'
 
         def fun(first, *args, **kwargs):
             return first
@@ -132,11 +150,14 @@ class TestDummyTests(unittest.TestCase):
 
 
 class TestFunctions(unittest.TestCase):
-    def setUp(self):
+
+    @mock.patch('replacer.Replacer._locate_replacement_file')
+    def setUp(self, rfile):
         fd, fname = tempfile.mkstemp()
         os.close(fd)
         self._path = fname
-        replacer.Replacer.self_object = replacer.Replacer(self._path)
+        rfile.return_value = fname
+        replacer.Replacer.self_object = replacer.Replacer()
         self.rc = replacer.Replacer
 
     def tearDown(self):